4. Txhim khu kev tiv thaiv kev ruaj ntseg: qib tswj kev ruaj ntseg thiab ntau qhov chaw hluav taws xob nrhiav kom tau teeb tsa hauv lub tsheb cab tuaj yeem kwv yees cov xwm txheej ua haujlwm ntawm cov khoom tseem ceeb txhua lub sijhawm.
5. Grab rotary system: grab rotary system tuaj yeem ua rau cov txheeb ze boom rotary, nyob rau hauv cov xwm txheej uas lub chassis tsis tuaj yeem txav mus los, ua kom tiav cov phab ntsa kev tsim kho ntawm txhua lub kaum sab xis, uas zoo heev txhim kho kev hloov ntawm cov khoom siv.
6. Ua ntej-kev ua tau zoo chassis thiab kev ua haujlwm zoo: siv lub chassis tshwj xeeb ntawm Kab ntsig, valve, twj tso kua mis thiab lub cev muaj zog ntawm Rexroth, nrog kev ua haujlwm siab heev thiab kev ua haujlwm yooj yim. Lub tsheb cab tau teeb tsa cua txias, lub tso suab, tag nrho adjustable tsav lub rooj, nrog cov yam ntxwv ntawm kev ua haujlwm yooj yim thiab kev nplij siab.